Home / 143,676,498.60-215,514,747.90-86,233,631.40

Finding the Fourth Proportional to 143,676,498.60, 215,514,747.90 and 86,233,631.40

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Solution

The fourth proportional to 143,676,498.60, 215,514,747.90 and 86,233,631.40 is: 129,350,447.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,676,498.60 : 215,514,747.90 = 86,233,631.40 : x
  2. Step 2: Convert to fraction form
    143,676,498.60/215,514,747.90 = 86,233,631.40/x
  3. Step 3: Cross multiply
    143,676,498.60x = 215,514,747.90 × 86,233,631.40
  4. Step 4: Simplify right side
    143,676,498.60x = 18,584,619,331,672,524
  5. Step 5: Solve for x
    x = 18,584,619,331,672,524/143,676,498.60
  6. Step 6: Final answer
    x = 129,350,447.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.